str1 = '111'
print(str1)
str2 = "222"
print(str2)
str3 = '''333
44445
555
6666'''
print('{0}----{1}----{2}'.format(1, 2, 3))
str4 = '6666'
print(f'这个程序的名字是{str4}')


# print(f'{i}*{j}={i*j}')

sep = ','
print(sep.join(str4))

str5 = 'good good study'

print("good".center(30,'*'))
